JPH0548448B2 - - Google Patents
Info
- Publication number
- JPH0548448B2 JPH0548448B2 JP17739088A JP17739088A JPH0548448B2 JP H0548448 B2 JPH0548448 B2 JP H0548448B2 JP 17739088 A JP17739088 A JP 17739088A JP 17739088 A JP17739088 A JP 17739088A JP H0548448 B2 JPH0548448 B2 JP H0548448B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- focus
- signal
- distance
- measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 claims description 41
- 238000004364 calculation method Methods 0.000 description 48
- 230000007246 mechanism Effects 0.000 description 42
- 238000001514 detection method Methods 0.000 description 7
- 238000005375 photometry Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17739088A JPS6452110A (en) | 1988-07-15 | 1988-07-15 | Automatic focusing camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17739088A JPS6452110A (en) | 1988-07-15 | 1988-07-15 | Automatic focusing camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6452110A JPS6452110A (en) | 1989-02-28 |
| JPH0548448B2 true JPH0548448B2 (enrdf_load_stackoverflow) | 1993-07-21 |
Family
ID=16030103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17739088A Granted JPS6452110A (en) | 1988-07-15 | 1988-07-15 | Automatic focusing camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6452110A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2771004B2 (ja) * | 1990-01-26 | 1998-07-02 | キヤノン株式会社 | 自動焦点検出装置を有するカメラ |
| JP5544874B2 (ja) * | 2009-12-25 | 2014-07-09 | 株式会社ニコン | デジタルカメラ |
-
1988
- 1988-07-15 JP JP17739088A patent/JPS6452110A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6452110A (en) | 1989-02-28 |
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